12641907131 has 4 divisors (see below), whose sum is σ = 14447893872. Its totient is φ = 10835920392.

The previous prime is 12641907107. The next prime is 12641907191. The reversal of 12641907131 is 13170914621.

12641907131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13170914621 = 10391 ⋅1267531.

It is a cyclic number.

It is not a de Polignac number, because 12641907131 - 2¹⁴ = 12641890747 is a prime.

It is a super-2 number, since 2×12641907131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12641907091 and 12641907100.

It is not an unprimeable number, because it can be changed into a prime (12641907191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902993360 + ... + 902993373.

It is an arithmetic number, because the mean of its divisors is an integer number (3611973468).

Almost surely, 2^12641907131 is an apocalyptic number.

12641907131 is a deficient number, since it is larger than the sum of its proper divisors (1805986741).

12641907131 is an equidigital number, since it uses as much as digits as its factorization.

12641907131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805986740.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 12641907131 in words is "twelve billion, six hundred forty-one million, nine hundred seven thousand, one hundred thirty-one".